Don't know of any other stock that'll fit. I do know the the compact won't fit as the cylinder is shorter than the standard Express. Mate just bought...
I have no experience of this rifle and no knowledge to input re using wadcutters with a magazine rifle, but would be trying pellets from the JSB, RWS...
I’ve been shuffling glass around different rifles this morning. Now got three rifles to re zero 🙈 put one of those little white tails I got off Nick...